Pump for oil and like wells.



Patented Oct. 27, 1914.

Z Il

C. W. BELL. PUMP FOR OIL AND LIKE WELLS. APPLICATION FILED Nov.15, 1913.

@Cuff/3 WITNESSES.

THE NORRIS PETERS Cn., PHO'm-LITHJ-. WASHINGTDN. D C.

,'Unrrnn srATEs f PATENT onirica.:

CHARLES W. BELL, or BAn'rLnsvILLE, OKLAHOMA;

PUMP FOB OIL AND LIKE WELLS.

y `.To all whom it may concern.'

Be it known that I, CHARLES W. BELL, a citizen of the United States, andresident of Bartlesville, in the county of Washington and State ofOklahoma, have invented a new and useful Improvement in Pumps for 'Oiland like `Wells5 and I do hereby declare the following to be a full,clear, and exact description thereof.

My invention relates to like wells.

In a patent granted to me May 9th, 1911, 991,600, there is set forth andclaimed a method of reducing the wear of valves and plungers in oil-wellpumps, said` method consisting in separating the gas from the; oil andadmitting the gas thus separated from the oil to and around said valvesand: plungers, thereby sealing the same against,` the entrance ofliquid. By this method the pumps for oil and fine sand which is presentin the oil, due to the shooting of the well, is prevented from settlingon the valves and plungers, and causing the rapid wearing away of thecups and packing. f

The object of the present invention is to provide a simple form ofapparatus for carrying out the above method, and to these ends myinvention comprises the novel features hereinafter set forth andclaimed.

In the accompanying drawing, Figure 1v is a vertical section of myimproved pump, with the piston ascending; Fig. 2 is a like view, showingthe piston descending, and Figs. 3 and 4 are enlarged sections; Fig. 5is av cross section on line 5-5, Fig. 4.

Referring to they drawing, the numeral 2 designates the working-barrelwhich is threaded into thecollar 3 at its lower end. Threaded into thecollar 3 is the perforated pipe 4, through which the fluid passes fromthe well into the pump. In the collar Sis formed the tapered shoulder 5,which forms the support for the ordinary standing valve 6. This valve isprovided with the cage 7 and the ball-valve 8. The upper end of theworking-barrel 2 is threaded into the enlarged extension 9. The upperend of the extension 9 is connected tothe tubular sec- .tubing 12,leading to the ytop of the well.

Within the working-barrel 2 is the ordinary cup-piston or plunger 13.yThe upperA Specification of Letters Patent.

Patented oet. 27, 1914..

Application led November 15, 1913i Serial No. 801,301.

end ofthe plunger 13 is threaded `into the valve-member 14. Thisvalve-member 14 forms the housing for'the. ball-.valve 15, and has theshoulder 16, which forms a rest for the valve-seat 17, and by means ofwhich said valve-seat is held in place on top of the plunger 13.

The valve-member 14 is provided with the apertures 18, which form apassage-way for the fluid to pass from the housing into the tube 19,which is threaded to the upper end of the valve-member 14. The tube 19being connected to the valve-member and the valve-member in turn to theplunger, the tube 19 thus becomes a part of said plunger and moves upand down therewith.

ber is held within said tubular extension by means of the expansiblering k23 which is heldlbetween thecollar 24 and the shoulder 25. Thepacking-cup 26 rests on the upper end ofk the collar 27, which isthreaded to the member 22, and said packing-ring is forced out againstthe inner walls of the tubular section 10 by the expanding ring 28. Thisexpanding ring 28 is preferably a splitk steel ring with suficientexpansion action to force the packing 26 tightly against the inner wallof the tubular section 10, so as to prevent the fluid 4from getting infrom ]above, or the gas from getting in from be- A tube 29 is connectedto the lower .end of the collar 27 and said tube extends down within thetube 19 to a point adjacent to the valve-member 14.

In the operation of my improvedgpump, when the plunger is raised, aslshown in Fig. 2, 'the fluid enters the well and passes up through thevalve 8 into the lower end of the working-barrel while the valve 15 lisclosed. Upon the descent of the plunger, the valve 8 is closed, and thefluid passing up through the plunger lifts ythe valve 15 which permitsthe fluid topass. on up above .the plunger and into the pipe 19. At thesame time that the oil and gas mixed therewith passes into the tube19,said tube 19in its descent, creates a partial vacuum yat its upper endin the chamber 9*, which draws in and 29, will separate, and the gaswill rise into the chamber 9a. Then the Lip-stroke comes, thedisplacement in the chamber 9av made by the tube 19, will force thefluid down from between 19 and 29 into 19, and in this manner thechamber 9a will gradually be filled with gas. p

The length of the'tubes 19v and29 is determined by having the tubes lapthe length of the stroke, plusl space enough, and a little more, tomakeup for the partial vacuum caused by the tube 19 on down-stroke. Inother words, they tubes must lap enough rl`he important feature of'improvement.- consists of the tubes 19 and 29 which sepai'ate a quantityof gas from the fluidV being,l pumped and hold the gasthus separated in`such a manner that said gasl acts as aI packing between the cups orpackingy off the plunger, thus keeping the sand romv reaching theseparts after it has passed with the fluid above the plunger. Vhen it isnecessaiy to pull the plunger to be: repaired, the rods are drawnupuntil thel tube 19 comes against the collar 27 where-- upon the member22, with the attached! parts, is drawn through the tubingand out;

back into place, the shoulder at the top of the piston-rod will forcethe member 22? and its attached paits down into-the tubularf section 102until the plunger 13 comes in: contact with the standing-valve 6. Thepiston-rod 2() is as long as the member 22;' and tube 29, plus thelength of the strokel of the pump. If the plunger shouldV bel drawn uptoo far, themember 22 will adjust itself inthe tubular section 10 tothestroke of the pump. Another advantage of this self-adjustment is thatif' sand should settle in the tube 19 when theV pump is idle and causethe tubes 19 and 29 to stick to gether, they could reciprocate togetherun til the sand is finally forced out, whereupon the member 22 wouldautomatically adjust section 10.

What I claim is:

1. In oil well or li'ke'pumps, the' combina-- tion with a suitablecasing, of a plunger working in said casing, an automatically operatedvalve controlling the supply ofi fluid to said casing, a valvecontrolling the passage of fluid to ar point above said plun-y ger, anupwardly extending tube connected to said plunger, a retaining member,

abovesaid plunger, a tube connected to said retaining member,v extendingdownwardly therefrom, a piston-rod connected to` said plunger, passingup through said last named' tube and retaining member, and

a gas chamber intermediate said retaining member and saidy plunger.

2. ln oil' well or like pumps, the combina- `tion wit-h.- a suitablecasing, of a plunger Working in said casing, an automatically op-.,erated valve controlling the supply of fluid to said casing, a valvecontrolling the paslsagefof fluidto a point above said plunger, Aanupwardly extending tube connected t0 said plunger, a self retainingmember above said plunger, a tube connected to said retaining` memberextending downwardly therefrom, a pistoirr-od connected to said plunger,and a gas-chamber intermediate -1 said retaining member and saidplunger.

so that the fluid will not rise from the top-f of the tube 19- ondown-stroke of the pump.`

3. In oil well or like pumps, the combinaktion with a suitable casing,of a plunger working in said casing, an automatically operated* valvecontrolling.` the supply of fluid to said casing, a valve controllingthe i'passageeofv fluid' to a point above said plun- `fger, an upwardlyextending tube connected to said plunger, a retaining member above fsaidplu-nger, a tube connected to said re- 'taining member extendingdownwardly l"therefrom and telescoping with said up- Ewardly extendingtube, a piston-rod connected to said plunger, and anl enlargement 'onsaid casing, forming4 a gas chamber in- .termediate said retainingVmember and said y plunger.

of the well. When these parts are lowered 4. In oil well'or like pumps,the combination .with a suitable casing, of a plunger working in saidcasing, an automatically operated valve controlling the supply of fluidtok said casing, a valve controlling the passage of fluid to a pointabove said plunger,

an upwardly extending tube connected to said? plunger, a retainingmember above said plunger, a tube connected to said retaining memberyextending downwardly therefrom and telescoping with said upwardlyextend- `ing tube, a piston rod connected to said chamber, whereby thefluid will not rise from the top of said upwardly extending tube on thedown-stroke of the pump, a

piston-rod connected to said plunger, and a gas chamber intermediatesaid retaining member and said plunger. itself and become stationary inthe tubular 1 5. In oil well or like pumps, the combination with asuitable casing, of a plunger working in said casing, an automaticallyoperated valve controlling the supply of above said plunger, anexpansion ring engaging said retaining member and Saidcasing, a tubeconnected to said retaining` meniber extending downwardly therefrom, a

piston-rod. connected to said plunger, and a ygas chamber intermediatesaid retainin member and said. plunger.

said plunger, packing interposed between said retaining member and saidcasing, a tube connected to said retaining member extending downwardlytherefrom, a pistonrod connected to said plunger, and a gas chamberintermediate said retaining member and said plunger.

In testimony whereof, I, the said CHARLES W.' BELL, have hereunto set myhand.

CHARLES W. BELL.l

Witnesses: f

T. J. ELLIS, Jr., JOHN J oHNs'roNE.v

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patients, i

Washington, D. C.

